聚氯乙烯/醋酸纤维素合金纳滤膜材料的研制及其界面性能表征  

Preparation and Characterization of Interfacial Properties of Poly(vinyl chloride)/Cellulose Acetate Alloy Nanofiltration Membrane Material

作　　者：陈均[1] 高素莲[1] 张秀真[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039

出　　处：《分析测试学报》2004年第5期89-92,共4页Journal of Instrumental Analysis

基　　金：安徽省自然科学基金资助项目(00045212)

摘　　要：以聚氯乙烯 (PVC)、醋酸纤维素 (CA)为膜基材 ,四氢呋喃为溶剂 ,蒸馏水为沉淀剂 ,采用溶液共混法制备出PVC/CA合金纳滤膜材料作为高效液相色谱 (HPLC)柱填料。由HPLC实验给出的参考溶质的保留时间计算膜 -液界面的溶质平衡分配系数K和界面水层体积VS,探讨合金化前后聚氯乙烯膜材料界面性能及亲水性的变化 ,并测定了PVC/CA合金的极性 (αP)和非极性(αn)The preparation of poly(vinyl chloride)/cellulose acetate alloy nanofiltration membrane material was described.The PVC and CA were dissolved in tetrahydrofuran which was then added into a large amount of distilled water to formthe membrane material.After packing the material in the HPLC column,the retention time ofthe reference solute obtained with HPLC was used to calculate the equilibriumdistribuˉtion coefficient(K)for differentsolutes atthe membrane-liquid interface and the volume of interfacial waˉter(V s ).Similar data were also used to study the variation of the interfacial properties and hydrophilicity of poly(vinyl chloride)membrane material before and after alloying.The polar(α P )and nonpolar(α n )paˉrameters of the PVC/CA alloy were also determined.

关 键 词：HPLC 界面性能 聚氯乙烯合金 纳滤膜 溶液共混 

分 类 号：O657.72[理学—分析化学] TQ028.8[理学—化学]